19thcentury 2012i-480 20thcentury animaldiseases animalhealth animalindustry animals animalsascarriersofdisease communicablediseases control crossinfection diseases diseasetransmission dogs emerging epidemics epidemiology etiology food forecasting governmentpolicy healthpolicy history immunology infectioncontrol infectious influenza internationalcooperation livestock microbiology nosocomialinfections pandemics prevention publichealth reporting safetymeasures sanitation sf623 standards transportation unitedstates veterinaryepidemiology veterinaryhospitals veterinarymicrobiology veterinarypublichealth wc950 worldhealth zoonoses